For the outer tooth surfaces, place the toothbrush at a 45-degree angle toward the gumline. Use gentle, short strokes, moving the brush back and forth against the teeth and gums.

• 用软毛的牙刷刷牙，然后时间至少为两分钟。靠近牙龈线的地方要给予特别的注意。（我翻的好烂，大家还是看上面的英文反正有配图嘛。）然后就温柔地来回刷嘛。